yashsingh1/xdaforums huggingface dataset:
[Epic 4G General] muyoso:
I reboot 3 times a day at least switching out batteries. Has completely fixed the TWS issue. It was noticeable IMMEDIATELY after I did the profile update and PRL update. Before I did it I had a TWS of 53%. Within an hour of doing it that was down to 2%. Has stayed down in the low single digits through at least a dozen reboots so far.
[Epic 4G General] iamchocho:
Since update PRL resets the radio at the end it would make sense that it would fix it (same reason why airplane mode fixes it) but I wouldn't expect that to stick after reboot. You must have just gotten lucky but hey Ill give it a shot, cant hurt.
[Epic 4G General] edonnelly:
Doesn't stick for me after reboot.

With regard to the battery, I'm using the ver. 0.2 genocide kernel and Dameon's deodexed EB13 and my battery life does seem quite a bit improved from DK28.
[Epic 4G General] k0nane:
ACS team lead rjmjr69 is at 29 hours, with heavy use. He's still got 9% remaining - and this is on the STOCK battery... and SyndicateROM Frozen with its accompanying kernel.

Keep an eye out, folks... ;)
[Epic 4G General] Mugen678:
I was running supernova on my girlfriends phone and midnight on mine. By noon she was down to 60%, about 4hrs off of the charger with light use. My gauge had barely moved with moderate use, by 5pm her phone died and mine had still not moved much. There are some definite bugs to be worked out with eb13. Both come from dk28, odin'd to eb13 extended with cwm3/ext4, and then were flashed with midnight and supernova.
[Epic 4G General] ShooterMcED:
I used the Samsung software to update to EB13 and then rooted, no other mods. I am definitely seeing better battery performance, down to one battery change a day where before it was 3 or 4......my kids love Angry Birds which is a battery killer.
[Epic 4G General] running_the_dream:
No change for me that I really noticed.
[Epic 4G General] sneerpeer:
ok, is this new? i am on eb13 using the supernova ROM and this happened a third time for me. I am down to 30-40% of my battery and i reboot for some reason, after the reboot the battery says 5-10% left. This never happened before on dk28 or di18. Any one else seen this? or is this a ROM issue (i doubt)
[Epic 4G General] crawrj:
Battery life is much better unless you use bluetooth. On DI18 I kept my bluetooth on most of the time and still got decent battery life. Using bluetooth with EB13 kills my battery. So for those that say your battery is horrible are you using bluetooth? Without bluetooth on DI18 I could get around 30 hours of light use. I am sitting on 64 hours 42 minutes right now and the battery will die at any minute. This is with light use only 2 hours and 48 minutes of screen on time with Wireless and GPS enabled the entire time. But still much better than I could get out of DI18.
[Epic 4G General] djbacon06:
that is absolutely ridiculous! are you using the stock 1500 mAh battery?? Have you deleted any stock programs like the DRM services, amazon, etc? please share your secret because I don't get anything even remotely near that. Best I've gotten so far was yesterday at 16 hours and 34 minutes before I decided to plug it in. this is with wifi, 4g, and gps DISabled. :confused:

edit: not to be an asshole, but screen shot please? I just don't see how that is possible on a 1500 mAh battery.
[Epic 4G General] nubsors:
My Battery Indicator flushed the loggs, but I will explain what I did and how certain things really fell into place. First I disabled DRM, that's a no brainer. I then made sure to set my volume up and turn down my haptic feedback. Turning up the volume instead of using vibrate mode is a big time battery saver. Turning down the haptic feedback reduces the battery usage for vibrations. I turned down the screen to the lowest setting. I turned on Wi-fi and made sure the sleep policy was set to never turn off. Turn off the Media Hub service. Turn off GPS. Bam, 36+ hours. I also did the PRL profile thing, but I had no idea that affected battery performance. I am going to make my battery indicator keep track of a week and I will post the screen shot.
[Epic 4G General] crawrj:
No offense taken. I can understand the skepticism. I would be thinking the same thing if it didn't happen to me. Unfortunately my battery was dead before I got to this message and I didn't think to get one. I will duplicate it and get a shot. It finally died at 67 hours. Yes this was the stock battery. Completely stock with root and the free hd games and asphalt frozen with titanium. No services stopped and nothing removed. I have my phone on vibrate all of the time. I have haptic feedback off. I have the brightness all the way down 98% of the time.
[Epic 4G General] dchawk81:
I don't understand all the bragging about great battery life when the phone is barely being used. You really may as well leave it off or get a basic flip phone, IMHO.

I'd be more impressed by someone getting 6 hours straight of Angry Birds out of the stock battery.
[Epic 4G General] nubsors:
It's not so much bragging as it is just being happy that the phone seems to have better battery life for me after the upgrade.
[Epic 4G General] dchawk81:
I can understand that, but shutting all the services down and letting it sit on the night stand for 60 hours isn't my definition of impressive.

I'm not trying to be a jerk...I'm just saying.
[Epic 4G General] crawrj:
+1. I could care less what anybody thinks about my findings. I am simply sharing my experience and stating that there was a clear increase in battery performance on my end.
[Epic 4G General] crawrj:
I did not shut down any services and it was always on me being used off and on except for the 16 hours of sleep time. I stated it was light use with what ended up being 2 hours and 45 minutes of screen on time as to not mislead anyone.
[Epic 4G General] socos25:
I've noticed better battery performance with EB13. Although I am using an O.C. kernel along with Set CPU. When the screen is off I have Setcpu lower it to 200mhz...

But here is what I have over the last two days.

32h 34minutes since removed from Charger

Display 62% - 1h 52 minutes on.

Cell Standby 17% - 0% without signal

Voice Calls 11% - 28m 17s

Phone Idle 8%

Wi FI - 2%

Still have around 18% battery left. Just guessing by looking at the indicator.
[Epic 4G General] othan1:
Everyone uses the phone differently with different applications installed.

Mine has gone as short at 6 hours and has lasted as long as 29 hours. I don't doubt the validity of anyone's claim of any amount of time. Buy extra batteries from China and forget about it.

See below for disclaimer.
[Epic 4G General] socos25:
Agreed, and I did do that. Paid $9.99 and got them in about three weeks with a charger. They don't last as long as the stock battery, but pretty close.

Regardless of that, I pretty much use my phone the same most of the time, and I will say EB13 has improved my battery by 2 -4 hours on average. I'm not sure if the modem is more efficent or what, but it seems to make a difference. Although in fairness I did not use set CPU before EB13.

My final stats before I swapped batteries:

Time off charger. 35h 48m

Display 62% - 2h 20m on

Cell Standby 15% - 0% without signal

Voice Calls 13% - 34m 17s

Phone Idle 7%

Wi FI - 3% - Time on 2h 23m
[Epic 4G General] dchawk81:
Where do you get the TWS stat from?
[Epic 4G General] crawrj:
Cell Standby
[Epic 4G General] dchawk81:
Oh that's not the TWS "bug" people keep talking about?
[Epic 4G General] djbacon06:
yeah it is. go to settings --> about phone --> battery use then click on cell standby. some people have the bug, some people don't. Not sure why that is.

Anywho, I must be doing something wrong. I believe people can get long lives on these batteries, I just don't understand why I am not experiencing anything even remotely close to that. I would say I use my phone moderately but am only getting 16 - 17 hours at best. I just don't get it. I do have the TWS bug, but I toggle airplane mode at boot to "fix" it so I only have 2-5% typically. :confused::confused:
[Epic 4G General] dchawk81:
Oh. Heck I didn't know that was clickable. I've only been booted up for about 9 minutes and it says 23%.

I'll check it again at the end of this battery.
[Epic 4G General] nubsors:
Ok here is my proof that I am getting really good battery life with medium to light usage. It really is doable. I don't know why mileage varies from person to person.
[Epic 4G General] gsrboy171:
sounds like you guys are barley using your phones. lets see how much battery life you getting when using stereo bluetooth head phone while watching a movie threw mediahub. plus phone calls and textiing.

iam a heavy user, facebook, games, all that. i see 4hrs. when iam just texting or calling i see 6-7hrs.
[Epic 4G General] dchawk81:
I have a suspician that the TWS bug isn't really a bug or the radio looking for a GSM signal at all. I think it's just evidence of Sprint's spotty data service. I've been force roaming on this battery and so far I have zero TWS without toggling. On Home Only settings in this exact same location with the last battery for the same amount of time I was at 16% even after toggling.

That makes me think it has more to do with your network coverage than whether you're on Eclair or Froyo and/or toggle. That would also explain the battery life variances.

I'm going to roam until this battery dies. Then I'm going to run a full battery cycle on Home Only with data off.

If both report no TWS for the entire cycle, I'm going to blame Sprint's native data coverage and not my phone. Home network/data off with a zero TWS report would disprove the GSM search theory.
[Epic 4G General] LargePrime:
please note; there is no 3500 mah battery. see batteryboss.org
[Epic 4G General] edonnelly:
I'm pretty sure it's not related to Sprint service. We have Sprint antennas inside the building where I work and full bars on the phone, but I get 50% TWS unless I've done one of the little work-arounds. Then it drops to 1% or so. If it were a service issue, my TWS wouldn't change when I do the work-arounds.
[Epic 4G General] dchawk81:
I think it's more to do with the quality/consistency of Sprint's network than just the strength of the signal for the reasons I've already stated.
[Epic 4G General] Krazy_P@:
I can say 100% that is not the case as there is no reason that I would get 50% Exactly almost every time my phone seems to have contracted this "bug" now why would I not see any other % besides 50, I for some reason have had it come and go IDK why, some times I am really without sprint service for a lil bit and I maybe get 3-5% in those areas. When I have done the work the tws starts droping RIGHT away... same service area and close to the tower around so honestly I see no reason that it would ALWAYS be at 50% weather it was for 2 seconds unplugged or 3 hours unplugged, and Yes this is a huge battery drain, now if I could just find out why sometimes it won't show up for several reboots or a few times I used odin to flash the radio and it stayed away for a few days/reboots but came back, tho since going to prl 60676 it seems to have left for good so far... Knock on wood....
[Epic 4G General] edonnelly:
But then it wouldn't get better whenever I make the changes to my phone.
[Epic 4G General] bigdreco:
I just went clicked on cell standby in battery usage.. and the only thing in there is cell standby which is at 6%.. and my phone has been unplugged for 3 hours and 40 minutes.. and cell stand by has been up for 5 hours and 51 minutes..

so is it safe to say that I dont have the TWS problem.. since I dont see TWS in there at all??
[Epic 4G General] burneystarke:
Things i do to improve battery life:

1)If you just changed from dk28 to eb13, or from any different kernal base for that matter try wiping your battery stats, draining the batter, then charging it back to full while its on.

2)Put it in airplane mode at night.

3)Make sure you are using conservative/on demand as the profile for setcpu
[Epic 4G General] socos25:
I don't even see how you could be on your phone that much, I mean you do know you can still converse with people instead of texting them? And why would I watch a movie on Mediahub when I can watch it on my 60" TV?

I'm not trying to be an a$$, I'm just saying... But yes if I was using my phone this much instead of living my life I would expect to only get four hours.
[Epic 4G General] djbacon06:
I don't think it has anything to do with sprint's coverage. I am 2 miles away from a tower and typically have full coverage. Moreover, I did not have this bug in DI18 (although some people did, lol). The problem is that the cell coverage will drop from full bars down to zero and then back up. This indicates it is looking for a roaming signal, when it should not be doing so.
[Epic 4G General] djbacon06:
click on cell standby. It will display TWS regardless if it is 0, 50, or 100%
[Epic 4G General] djbacon06:
these are all htc batteries
[Epic 4G General] muyoso:
Doesn't matter. He is right there is no TRUE 3500mah battery. Its just what its marketed as. Easier to just say 3500mah battery, but realize its not actually 3500mah.

Also, those batteries for HTC phones will be exactly the same as the ones for our phones, just maybe a different size or connector.
[Epic 4G General] djbacon06:
interesting...thanks for the info. Ya know, I bought one of them on ebay for $10 or whatever and wasn't getting great battery life off it. I told the seller and he said it was probably defective, so he sent me another one free of charge. This was like 3 months ago and I have yet to open it from the packaging, haha. I decided to just go with an extra OEM battery with external charger. I really hated how much bigger the phone was with the monster battery anyway
[Epic 4G General] Devi0124:
My battery has been about the same on every ROM. I wake up at 6.30am and unplug and I go to bed at around 11.30pm and plug in with anywhere from 20-40% left depending on usage. I'm a pretty heavy user... I flash roms about every other day. I stay on wifi when I'm home which is only about 3 hours before I go to bed. Same battery life I had on the moment. Just drain your battery until your phone dies and recharge while its still off. Don't interupt it until its fully charged. You only have to do it once and ur battery should be good. There are other methods but this has worked for me on multiple devices.. 1 moment and 2 epics.
[Epic 4G General] Dulanic:
The biggest thing that boosted my battery with eb13 was setting Wifi to sleep. Default with eb was to never sleep.
[Epic 4G General] Bortmonkey:
I'm really not sure how people get such good battery life. I used to complain about the iPhone 3Gs battery but that really seems like heaven compared to the horrible life I've gotten with this thing. And the worst part is even on roms where people would say theyre getting 14-18 hours, I'd be getting a consistent 8-10, usually leaning towards 8. I'm starting to think it's the actual battery I have but what are the odds. I'm using Syndicate which everyone is praising for giving 15-30 hours, I'm getting 10 two days in a row, don't think I'm using it that much either, it just literally drains away in front of me.

Aint nuttin epic bout dat.
[Epic 4G General] Bortmonkey:
And I live in NYC, so coverage isn't an issue. I'm not in the subways too much or anything. 4G sometimes hits 1MB/s .....although its usually off.
[Epic 4G General] djbacon06:
well to those I doubted, I am sorry. I'm running syndicate rom now and here are my results so far. Very pleased with this and as you can see that's been running for over 15 hours and still at 58% absolutely amazing!
[Epic 4G General] dchawk81:
They're not using the phone. It'll last forever when it's asleep.
[Epic 4G General] jpeepers:
I have seen this type of behavior before after flashing a new ROM. It will go back to "normal" (poorer battery life) after a few reboots. I think it has something to do with the battery calibration?

I just flashed Syndicate last night and my phone has been off the charger for 6 hours and I am still showing 91% battery. I'm sure that won't last after a reboot or a few days.
[Epic 4G General] djbacon06:
I hope that isn't the case. I am now at over 18 hours and have 22% remaining. Don't think it is calibration because I would always run my phone dead, which would be after about 8-11 hours of use with stock eb13. Although, I have been running this rom just over 2 days now and the first battery I ran through it was dead in about 14 hours, so we'll see!
[Epic 4G General] nickleson:
I never got more than 12 hours of minimal use out of my epic. I never understood why because after 8 hours of being on standby( not ever turning off the screen) I would be down to 65%.
[Epic 4G General] intulsa:
I've tweaked this, set up that, UV/OC kernels, rom. I get what I think is very good battery, when I don't use it much. But I didn't buy it to use occasionally, this is my office computer when I'm on the road at clients, etc. I get about 6 hours screen time during the day. With the extended battery from 5am to about 9pm I usually have about 30% left. I consider myself a heavy user. On weekends under light use conditions this thing could go several days (I think). During the week, I have email syncing, lots of appointments, scheduling, browsing and streaming media between clients and I'm kind of happy making it all day with my battery. When I first got the phone, I would be forced to charge it again at my lunch break otherwise it'd be dead by 2pm. The way I have it now, almost no drain when the screen is dark, but OC and running hard when I'm actively using it. I do see there are some issues for some people, TWS, unwanted background processes, etc. Doesn't the usage patterns really determine battery life?
[Epic 4G General] sinfony78:
my battery is 10%/hour no matter what...very disappointed in battery life
[Epic 4G General] intulsa:
Today has been light, 10 hr on, almost 3 hr screen time mostly tapatalk, few texts and calls. 72%. Extended battery.
[Epic 4G General] vapur:
I am using the data network off selection and my daughter has been playing games pretty heavily on the phone all day. At 41%. Would be at about 10% by now before that option. I am using an app called battery indicator to give me a percentage in the upper right corner. Is there anything built into the ROM in the new version to provide the same info, or am I stuck with using the app? Thanks
[Epic 4G General] Quis89:
Anyone who says they've gotten more than 30 hours with any usage has bull**** seeping thru their lips...

Seems unlikely...
[Epic 4G General] jbadboy2007:
Here's my bs
[Epic 4G General] socos25:
Then I must love **** sandwhiches, because I routinely get over 30 hours with my stock battery, and about 28 with my chinese knockoffs. This is with Light usage, about 2.5 hours screen on time. I figure if I use it any more then that then I need to get a life.
[Epic 4G General] gsrboy171:
iam not home all day to watch movies on my 52in Samsung LED. i live in NYC. so when iam out i use my phone alot, business, playing around. iam out 14hrs of the day mostly. like i said. iam heavy user. now if someone post something on how they getting 14hrs on a stock battery on heavy use then i will be surprised, other than that, nothing in this thread impresses me.
[Epic 4G General] theredmonkey:
Battery

I have a rooted Epic but otherwise its stock eb13 and my battery life is way better since i did not do the integrated contacts for Facebook. Not sure why it ate my battery so bad but I skipped it and just use the Facebook app and its way better now.
[Epic 4G General] Quis89:
Is your phone a paperweight?
[Epic 4G General] jbadboy2007:
I showed you my screen on time so no my phone is not a paper weight. I do have a job though to where I can not be playing on my phone all day. I know where I'm going most of the time so I don't need gps. I have a usb/cd player in my truck. Also I have a pc. So really most of the time I use this thing for what I bought it for the most awesome phone out. That's it. Do you have a life??
[Epic 4G General] socos25:
Amen, Brother!! I just don't see how I could get anything done staring at a little 4" screen for 14 hours a day.. It is a sad state of affairs, but it's their life, let them life it :-)
[Epic 4G General] Quis89:
Why do you guys even own this phone? I would think my being connected to this phone shows an active life between calls, texts, IMs, email and scheduling. Not to mention web browsing, posting here and occasional music.

I'm getting what I paid for. Are you? Otherwise why bother? Can't discredit us for using the best phone out as the best phone out...
[Epic 4G General] Quis89:
Use your phone for what its capable of...you'll see just how much you can get done.
[Epic 4G General] dchawk81:
My phone = mobile office. It gets used hard. For me, not using it means having no professional life.

You bought it for the most awesome phone out, but leave it in a deep sleep most of the time. You'd be better served by a $20 flip phone.
[Epic 4G General] rygran87:
Precisely! I don't use mine as a mobile office, but I do use the streaming capabilities, surf the web, use xda app, play games, text, and talk to people. This constant use, which the phone was designed for is a drain on the battery.

I tease my wife with similar phrases, because her Moment (which she refuses to update from CL14) lasts 3 days on a charge. Why have a powerful smartphone when you don't even use it?
[Epic 4G General] dchawk81:
Absolutely. I bought it to use all those features. I didn't buy it to brag.

If I get through an 8 hour day, completely unplugged, on one OEM battery, I'm happy. More often than not I need two batteries. I'm okay with that though since I can fit two spares in my jeans' coin pocket.

Heavy use is also why I bought two double capacity and two normal capacity batteries to supplement the stock.
[Epic 4G General] rygran87:
Damn! That's very extreme use! I'm thinking I'll be good once I get an extended battery. My stocker on acs frozen lasts between 6-12 hours on a charge, depending on how heavily I use it.
[Epic 4G General] dchawk81:
Yep I use the shizz out of it. Some days are busier than others and I don't leave everything on constantly (WiFi, Bluetooth, GPS, 4G, etc are only on when I actually need them) BUT I don't shut everything down to eek out every last bit of time on standby either.

Even on my BlackBerry Tour I'd get about 8-10 hours on average....and those things are legendary for their battery life. Of course it'd last forever if I didn't use it. :)
[Epic 4G General] HeXeD:
I think the most accurate measure of battery life would be to run a 720p mkv constantly and then measure the battery life after 4 hours. I think settings should also be taken into account, such as screen brightness, connection settings (Wifi, 4G, GPS, bluetooth, etc..), and maybe even sound volume as well. If anyone wants to test this with specific settings, I think everyone else would be able to replicate it easily. I personally use a SMB mount to a network share and stream 720p mkv's over the network. You might want to save the file to the sd card to make the test easier to reproduce, but you would have to find a 720p movie file that is less than 4GB large due to FAT32.
[Epic 4G General] socos25:
I use it for email, texting, and obviously a phone. I sometimes use it for web surfing, but see no reason to use it if I am sitting next to a computer most of the day. Just like right now, I coudl be browsing the XDA forums, but when I am sitting next to my computer why use the small screen of my phone.

I see no reason to try to watch movies on it, or even play games. I didn't buy it to play games. I use it for business. It is nice that people can get ahold of me many different ways on one device.

I do enjoy this phone, but like I said, I couldn't see spending 14 hours a day on it. That is just nuts to me.

But don't let me ruin your phone. Enjoy it.